Ranked listRefreshed monthly

The 10 largest hospitals in California by employees

Cedars-Sinai Medical Center has the most employees of any hospital in California, 19,358, followed by UCSF Helen Diller Medical Center at Parnassus Heights in San Francisco (14,146) and UC Davis Medical Center in Sacramento (12,171). Together the 10 leaders hold 89,664 employees in seven cities.

Updated Full-time equivalent employees from each hospital's latest Medicare cost reportHow we ranked

  1. Cedars-Sinai Medical CenterLos Angeles · Cedars-Sinai Health System19,358employees913beds
  2. UCSF Helen Diller Medical Center at Parnassus HeightsSan Francisco · University of California Health14,146employees887beds
  3. UC Davis Medical CenterSacramento · University of California Health12,171employees654beds
  4. Ronald Reagan UCLA Medical CenterLos Angeles · University of California Health8,829employees446beds
  5. Children's Hospital Los AngelesLos Angeles · Children's Hospital Los Angeles6,850employees386beds
  6. Lucile Packard Children's Hospital StanfordPalo Alto · Stanford University6,588employees394beds
  7. Loma Linda University Medical CenterLoma Linda · Seventh-day Adventist Church5,797employees437beds
  8. Hoag Hospital Newport BeachNewport Beach · Hoag Memorial Hospital Presbyterian5,747employees512beds
  9. Los Angeles General Medical CenterLos Angeles · County of Los Angeles5,428employees545beds
  10. Community Regional Medical CenterFresno · Community Health System4,750employees783beds

The 10 highest of 342 California hospitals that report employees. Ranks compare size, not quality of care.

Every hospital in California

The 10 top California hospitals hold 22% of all employees

342 California hospitals report employees, 404,919 employees in all. The 10 on this list hold 89,664 of it. The median hospital has 594 employees, so Cedars-Sinai Medical Center is about 33 times that size.

of all employees at California hospitals that report them
22%
the size of the median California hospital, which has 594 employees
33×
of the 342 California hospitals that report employees
2.9%

How we ranked the top California hospitals

Measure
Full-time equivalent employees from each hospital's latest Medicare cost report.
What counts as a hospital
One CMS certification number. A hospital with several campuses under one number counts once.
Field
342 California hospitals in the Dmand AI database report employees.
Ties
Hospitals with the same number share a rank.
What a rank means
Size only. A rank compares employees; it says nothing about quality of care.
Refresh
Monthly. Updated Oct 28, 2026.

FAQ

Questions about the top California hospitals

Answers from the same data, updated monthly.

Which California hospital has the most employees?

Cedars-Sinai Medical Center in Los Angeles, with 19,358 employees. UCSF Helen Diller Medical Center at Parnassus Heights is second with 14,146.

What are the top 10 California hospitals by employees?

Cedars-Sinai Medical Center (19,358), UCSF Helen Diller Medical Center at Parnassus Heights (14,146), UC Davis Medical Center (12,171), Ronald Reagan UCLA Medical Center (8,829), Children's Hospital Los Angeles (6,850), Lucile Packard Children's Hospital Stanford (6,588), Loma Linda University Medical Center (5,797), Hoag Hospital Newport Beach (5,747), Los Angeles General Medical Center (5,428), Community Regional Medical Center (4,750).

How many employees does a typical California hospital have?

The median California hospital that reports employees has 594 employees, out of 342 that report them.

How often is this list updated?

Every month, when the Dmand AI database refreshes. This version is from Oct 28, 2026.

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    The 10 largest hospitals in Arizona by employees

    The same ranking for Arizona hospitals.

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    The national ranking by employees.

  • Insight

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    Epic runs 31% of California hospitals with an EHR on file.

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